>sp|Q3MH17|PUR7_ANAVT Phosphoribosylaminoimidazole-succinocarboxamide synthase OS=Anabaena variabilis (strain ATCC 29413 / PCC 7937) GN=purC PE=3 SV=1
MSVHSKLYEGKAKILYTTDEPEVLLADFKDDATAFNAQKRGSILGKGRINCSISSQLFQQ
LEASGIKTHFIDSPSPNQMRVKAVKIIPIEVVIRNIAAGSLSQQTGIELGTVLKQPLVEF
YYKNDQLGDPLLTRDRLLLMELATAEQVEEITHLALQINDFLKNFWQNCGITLVDFKLEF
GLDSQQQILLADEISPDTCRLWNTTEADPNRRVMDKDRFRRDLGNVEDAYQEVLQRVLTA
VEIKN